Mark (Chow Yun-fat), a man of honour in a world of dishonour. As the sidekick to his former gang brother Tse-ho (Ti Lung, Blood Brothers), Mark finds himself out of favour when his boss is sent to the slammer. Ho comes out of jail repentant and is determined to turn over a new leaf for the sake of his policeman brother, Kit, (Leslie Cheung, Farewell To My Concubine) but his old arch enemy is equally determined to take him out of the picture.